This thing is cool!!!!!!!!!!! I did some tests with it and it and my hygrometer are showing the same readings as well as matching the Math based on sugar content. I was a little skeptical that it would be a quality unit because it only cost me $20.00, but it works great!!!

Thanks ya'll. I'm waiting for mine to show up in the mail any day now and it's great to hear some confidence in the cheap eBay options.
On another note.......is there a "Hot Deals" section or thread that I missed? It seems like a good place where we could share reputable eBay sellers, web deals and CL finds to keep everyone's overhead low. Just a thought fueled by Russian Imperial Stout, that's all.